Process for producing chlorofluorobenzenes

Abstract

A process for producing chlorofluorobenzenes, which comprises reacting fluorine-containing nitrobenzenes of the following formula (1) with chlorine gas to obtain chlorofluorobenzenes of the following formula (2): ##STR1## wherein n and m are integers satisfying 1≦n≦3, 0≦m≦2 and 1≦n+m≦3.

We claim: 
     
       1. A continuous process for producing chlorofluorobenzenes, which comprises reacting the nitrobenzene of formula (6) in the vapor phase with chlorine gas at 300°-600° C. to obtain a chlorofluorobenzene of formula (7): ##STR7## wherein each of Y 1  and Y 2  is H or F. 
     
     
       2. A process for producing chlorofluorobenzenes, which comprises reacting aromatic nitro compounds of formula (5) with a fluorinating agent to obtain fluorine-containing nitrobenzenes having formula (6), and then reacting the nitrobenzene of formula (6) in the vapor phase with chlorine gas at 300°-600° C. to obtain a chlorofluorobenzene of formula (7): ##STR8## wherein each of X 1 , X 2 , Y 1  and Y 2  is H or F.